KR20060007628A - Apparatus and method for transmitting a data in a portable terminal - Google Patents

Abstract

The present invention relates to data transmission of a mobile terminal, and more particularly, to an apparatus and method capable of data transmission through a call channel,

A signal generator for generating a low frequency signal corresponding to a key signal input during a call; A signal synthesizer for synthesizing the low frequency signal with a voice signal; A wireless communication unit for wirelessly transmitting the synthesized signal through a communication channel; A signal separator for separating a low frequency signal from the received signal processed by the wireless communication unit; And a data output unit for detecting a frequency of the separated low frequency signal and outputting data indicated by the detected frequency.

Avatar, call channel, data transfer.

Description

Data transmission and output device of mobile terminal and its method {APPARATUS AND METHOD FOR TRANSMITTING A DATA IN A PORTABLE TERMINAL}

1 is a block diagram of a data transmission and output device of a mobile terminal according to an embodiment of the present invention.

FIG. 2 is a detailed configuration diagram of the data transmission and output device shown in FIG. 1. FIG.

3 is a data transmission flowchart according to an embodiment of the present invention.

4 is a data output flowchart until receiving and outputting data transmitted by the method shown in FIG.

The present invention relates to data transmission of a mobile terminal, and more particularly, to an apparatus and a method for transmitting data through a communication channel.

Recently, due to the development of electronic communication technology and the development of semiconductor chip manufacturing technology, the size of a mobile terminal has become very small. These portable terminals have been developed for the purpose of simply calling, but in order to meet various tastes of consumers, various additional functions such as an electronic notebook, a camera, and music file playback have gradually been loaded.

In general, the above-described additional functions are designed to be executed independently of each other. That is, the user of the portable terminal may enter the electronic notebook mode and input and register personal image information, enter the camera mode to photograph a predetermined subject, and play and listen to a music file in the corresponding mode.

As such, most of the functions added to the portable terminal are programmed to run in a standalone mode. Consumers hope to perform another function simultaneously while making a call.

For example, when you want to send the Internet access information (URL) to the call counterpart while performing a call, you have no choice but to notify you by voice. However, since most of the Internet access information is composed of English letters, the English letters may not be delivered correctly due to pronunciation or listening problems. In order to solve this problem, a portable terminal capable of transmitting an input text while performing a call should be developed.

In addition, it is necessary to perform text transmission and voice call alternately according to the surrounding situation. Since the two illustrated examples cannot be performed in the call mode with the current mobile terminal, the development of an apparatus or method for solving the problem is difficult. It is necessary.

Accordingly, an object of the present invention is to provide a data transmission and output device and a method for conveniently transmitting necessary information to a call counterpart while performing a call.                         

Furthermore, another object of the present invention is to provide a data transmission and output device and a method for remotely controlling the specifications of a call counterpart terminal within a range allowed by a call counterpart while performing a call.

Data transmission and output device according to an embodiment of the present invention for achieving the above object,

A signal generator for generating a low frequency signal corresponding to a key signal input during a call;

A signal synthesizer for synthesizing the low frequency signal with a voice signal;

A wireless communication unit for wirelessly transmitting the synthesized signal through a communication channel;

A signal separator for separating a low frequency signal from the received signal processed by the wireless communication unit;

And a data output unit for detecting a frequency of the separated low frequency signal and outputting data indicated by the detected frequency.

According to the above-described feature of the present invention, a low frequency signal corresponding to a key signal input during a call is generated and transmitted to a call counterpart terminal through a call channel together with a voice signal, and a low frequency signal separated from the received signal on the call counterpart terminal side. By outputting the text or image or control data indicated by the, it is possible to obtain the effect that can conveniently transmit the necessary information to the call counterpart while performing the call.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, if it is determined that a detailed description of related known functions or configurations may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

First, FIG. 1 is a block diagram of a data transmission and output device of a portable terminal according to an embodiment of the present invention, and FIG. 2 is a detailed block diagram of the data transmission and output device shown in FIG.

In FIG. 1, the voice signal generator 10 shows a talker provided in a general portable terminal. The voice signal generator 10 converts a user's voice into an electrical voice signal, removes noise, and amplifies the signal. .

The signal generator 20 generates and outputs a low frequency signal corresponding to a key signal input during a call. In the following description, a low frequency signal indicates a signal of 300 Hz or less, and the upper limit of the low frequency signal is a value that can be selectively changed.

As described above, the signal generator 20 further includes a keypad 22 for generating a key signal, a low frequency oscillation controller 24 for controlling the oscillation of a low frequency signal corresponding to the generated key signal. And a low frequency signal oscillator 26 for oscillating different frequencies by the low frequency oscillation controller 24.

For reference, the low frequency oscillation control unit 24 described above may be integrated into the data output control unit 74 and one control module to be described later. The low frequency oscillation control unit 24 controls the generation of the low frequency signal according to the key signal input only when the operation mode of the terminal is set to the "data transmission mode during a call." In order to control the generation of the low frequency signal according to the key signal input, the low frequency oscillation control unit 24 has a frequency of the low frequency signal corresponding to each key input in the internal memory as shown in the following table.

Keystroke frequency Output data type One 30 Hz One ： ： ： A 40 Hz A f 50 Hz f ： ： ： M 100 Hz M * 150 Hz * Special keys 220 Hz Avatar image data n Special keys 290 Hz Audio output data

As shown in Table 1, different frequencies and output data are mapped to each key. In Table 1, "avatar image data n" and "audio output data" are each mapped to a special key as a form of output data for remotely controlling the terminal specifications. However, since the number of keys is limited on the terminal, it may be desirable to be assigned a key for controlling the specifications of the terminal through a menu rather than using a special key. In addition, it is possible to obtain the effect of transmitting one output data by continuously generating different frequencies at the input of the contracted key combination, or to obtain one output data transmission effect by mixing and transmitting different frequencies.

Meanwhile, the signal synthesizer 30 synthesizes and outputs the voice signal and the low frequency signal generated by the voice signal generator 10 and the signal generator 20, respectively.

The wireless communication unit 40 plays a role of wirelessly transmitting the synthesized signal output from the signal synthesizing unit 30 through a communication channel. As described above, the wireless communication unit 40 includes a data modulator for modulating the synthesized signal into a signal for wireless transmission, and an RF unit for frequency-upping the modulated signal and transmitting the radio signal through an antenna. Include. In addition, the wireless communication unit 40 further includes a data demodulation unit for data demodulating by down-converting the frequency of the radio signal received through the RF unit.

Meanwhile, the signal separator 50 separates and outputs a low frequency signal from a received signal that is processed and demodulated by the wireless communication unit 40.

The signal separator 50 may employ only a low pass filter for extracting a low frequency signal of 300 Hz or less from the received signal. In another embodiment, the signal separation unit 50 may include an HPF for extracting only a voice signal of 300 Hz or more from the received signal, and the received signal. The signal separation unit 50 may be implemented by employing an LPF for extracting only a low frequency signal of 300 Hz or less from the signal.

The data output unit 70 detects the frequency of the low frequency signal separated by the signal separation unit 50, reads out the data indicated by the detected frequency from the memory 76, and outputs the data.

The data output unit 70 includes a frequency detector 72 for detecting a frequency of the separated low frequency signal as shown in FIG. 2, and a memory 76 storing data indicated by each frequency of the detected low frequency signal. It includes. The memory 76 stores table data shown in Table 1 above. The memory 76 may be integrated with the internal memory included in the low frequency oscillation controller 24 in some cases.

Furthermore, the data output unit 70 further includes a data output control unit 74, which outputs data indicated by the frequency detected by the frequency detection unit 72 to the memory 76. Read from the display unit 78 or an audio output unit (not shown).

The voice signal transmitter 60, which is not described in FIG. 2, converts the voice signal separated by the signal separator 50 into an audible sound and outputs the audible sound.

In addition to the above configuration, the portable terminal according to the embodiment of the present invention may further include a caller information detection unit which is already widely used. In this case, the data output controller 74 reads out and displays the avatar image data mapped to the caller information detected by the caller information detector from the memory 76, and indicates that the frequency detected by the frequency detector 72 indicates. Accordingly, the display avatar image data may be varied (such as a crying face or a stepped face).

Hereinafter, a process of transmitting predetermined data during a call to a call counterpart terminal and outputting data transmitted from the call counterpart terminal in the portable terminal having the above-described configuration will be described.

3 is a flowchart illustrating a data transmission according to an embodiment of the present invention, and FIG. 4 is a flowchart illustrating a data output until receiving and outputting data transmitted by the method illustrated in FIG. 3.

Referring to FIG. 3, the user of the portable terminal preferentially sets the mode of the terminal to the " in-call data transmission mode " (step 90) in order to transmit information to the call counterpart terminal during the call or vice versa.

If the two-way call is being made while the data transmission mode is set as described above (step 92), the low frequency oscillation controller 24 checks whether there is a key input for generating a low frequency signal through the keypad (step 94).

If there is a key input, the low frequency oscillation control unit 24 displays the key input data on the display unit 78 (step 96) and proceeds to step 98 to check whether there is a request for transmission of a low frequency signal through the keypad 22. do. Since a series of numbers or letters usually have a meaning as a piece of information, the low frequency oscillation control unit 24 displays the key data on the display unit 78 for each user's key input. In the following description, it is assumed that the character string input by the mobile terminal user is "curitel.com".

When a series of strings "curitel.com" is input, the user requests transmission of the input string through the contracted key (step 98). Then, the low frequency oscillation control unit 24 outputs the low frequency oscillation control signal so that oscillation of the frequency corresponding to the input string ("curitel.com") is performed (step 100). By the low frequency oscillation control signal, the low frequency signal oscillator 26 generates a low frequency signal of 300 Hz or less and is applied to the signal synthesizer 30.

Accordingly, the signal synthesizing unit 30 synthesizes a low frequency signal of 300 Hz or less generated by the low frequency signal oscillation unit 26 with a voice signal of 300 Hz or higher output from the voice signal generator 10 and applies the result to the wireless communication unit 40. The voice signal including the series of text information is modulated and up-converted by the wireless communication unit 40 to be wirelessly transmitted through the call channel.

Hereinafter, a process of outputting data by processing a low frequency signal transmitted together with a voice signal through the call channel will be described with reference to FIG. 4. The terminal of the call counterpart that receives and outputs the low frequency signal is also in the state of "calling data transmission mode" (step 110) and is currently busy (step 112). In such a call state, the received signal processed by the wireless communication unit 40 is first input to the signal separation unit 50.

In this case, the received signal in which the low frequency signal of 300 Hz or less and the voice signal of 300 Hz or more are synthesized is separated into the low frequency signal of 300 Hz or less and the voice signal of 300 Hz or more by the LPF and HPF of the signal separation unit 50, respectively. ) And a voice signal transmitter 60. Therefore, the voice signal transmitter 60 converts the voice signal of the call counterpart into an audible sound and outputs the audible sound.

Meanwhile, the frequency detector 72 of the data output unit 70 detects the frequency of the low frequency signal applied separately from the signal separator 50 (step 114). In the frequency detection method, the frequency of the low frequency signal can be calculated by counting the peak-to-peak period of the applied low frequency signal. The frequency of the low frequency signal calculated as described above is applied to the data output controller 74 as the detection frequency.

Then, the data output controller 74 reads the data indicated by the frequency detected by the frequency detector 72 from the memory 76 and outputs the data through the display 78.

Accordingly, the user of the portable terminal knows that the information transmitted to the call counterpart during the voice call to the user is "curitel.com" and stores the information in his terminal for later use.

According to the embodiment of the present invention described above, the low frequency signal corresponding to the key signal input during the call is transmitted to the call counterpart terminal through the call channel together with the voice signal, and the low-frequency signal separated from the received signal on the call counterpart terminal side. By outputting the text data indicated by the signal, you can solve the information transmission problem that may occur due to pronunciation or listening problems.

Since text information can be transmitted during a voice call, it is possible to prevent the confidential information from being unnecessarily exposed to a third party in advance.

In the above, an embodiment of the present invention has been described assuming text data transmission. However, control data for controlling the specifications of the call counterpart terminal may be transmitted through a call channel together with a voice signal without any modification. By such control data, the audio output (ring tone, call volume, etc.) of the receiving terminal can be adjusted.

Hereinafter, another embodiment of the present invention for changing the avatar image displayed on the call counterpart terminal through data transmission will be described.

First, as one application program, the mobile terminal may display different avatars according to callers. That is, one avatar may be mapped to a counterpart terminal number with frequent calls, and when there is a call, the avatar mapped thereto may be read from the memory and displayed on the display unit.

In response to the call, if a low frequency signal for changing the image of the display avatar is received from the counterpart terminal during the call, the image of the current display avatar may be changed according to the frequency of the low frequency signal. The method of changing the avatar image is to simply change the face image such as smiley face, crying face, or frowning face for the same avatar.However, by introducing a 3D avatar, the avatar's motion is changed in a three-dimensional manner. This can be. This is a problem to select in consideration of the performance of the mobile terminal.

According to the second embodiment of the present invention, by controlling the avatar image displayed on the call counterpart terminal through the call channel, the current mood state may be implicitly implied to the call partner, without additional server support. The introduction of a new content concept called avatar image remote control can be expected to induce terminal consumption.

For reference, although not mentioned in the embodiments of the present invention, when the key input for oscillation of the low frequency signal is displayed, the corresponding output data is displayed on the display unit to confirm whether the data to be transmitted to the user is correctly input. Giving may be a desirable way.

As described above, the present invention generates a low frequency signal corresponding to a key signal input during a call, and transmits a low frequency signal to a call counterpart terminal through a call channel together with a voice signal, thereby making it possible to transmit and receive necessary information while performing a call.                     

In addition, the present invention has the effect of remotely controlling the specifications of the call counterpart terminal within the range allowed by the call counterpart, by introducing a new content concept of remote control of the avatar image displayed on the counterpart terminal without additional server support There is also an advantage that can induce consumption consumption of the terminal.

On the other hand, the present invention has been described with reference to the embodiments shown in the drawings, which are merely exemplary, and those skilled in the art will understand that various modifications and equivalent other embodiments are possible therefrom. Therefore, the true technical protection scope of the present invention should be defined only by the appended claims.

Claims (15)

A mobile terminal capable of making a voice call through a call channel, A signal generator for generating a low frequency signal corresponding to a key signal input during a call; A signal synthesizer for synthesizing the low frequency signal with a voice signal; A wireless communication unit for wirelessly transmitting the synthesized signal through a communication channel; A signal separator for separating a low frequency signal from the received signal processed by the wireless communication unit; And a data output unit for detecting a frequency of the separated low frequency signal and outputting data indicated by the detected frequency. The apparatus of claim 1, wherein the signal generator; A keypad for generating a key signal; A low frequency oscillation controller for controlling the oscillation of the low frequency signal corresponding to the generated key signal; And a low frequency signal oscillation unit for oscillating different frequencies by the low frequency oscillation control unit. The apparatus of claim 2, wherein the low frequency oscillator oscillates only a low frequency signal of 300 Hz or less. The apparatus of claim 1 or 2, wherein the data output unit; A frequency detector for detecting a frequency of the separated low frequency signal; A memory for storing data indicated by each frequency of the low frequency signal; And a data output control unit for reading and outputting data indicated by the detected frequency from the memory. The data transmission and output apparatus of claim 4, wherein the data stored in the memory is at least one of text data, avatar image data, and audio output data. The method of claim 4, wherein the data output controller reads and displays avatar image data mapped to detected caller information from the memory, and varies the displayed avatar image data as indicated by the detected frequency. Data transmission and output device of the mobile terminal. The method of claim 1, wherein the signal separation unit; And a low pass filter for extracting a low frequency signal of 300 Hz or less from the received signal. The method of claim 1, wherein the signal separation unit; A first filter for extracting only a voice signal of 300 Hz or more from the received signal; And a second filter for extracting only a low frequency signal of 300 Hz or less from the received signal. A mobile terminal capable of making a voice call through a call channel, Checking whether there is a key input for generating a low frequency signal during a call; Generating a low frequency signal corresponding to the input key signal; Synthesizing the generated low frequency signal with a voice signal and wirelessly transmitting it through a communication channel; Separating the low frequency signal from the received signal processed by the wireless communication unit; And detecting a frequency of the separated low frequency signal and outputting data indicated by the detected frequency. The method of claim 9, further comprising displaying data indicated by the low frequency signal corresponding to the input key signal. The method of claim 9 or 10, wherein the low frequency signal has a frequency of 300 Hz or less. The method of claim 9 or 10, wherein the data output according to the frequency of the low frequency signal is at least one of text data, avatar image data, audio output data. A mobile terminal capable of making a voice call through a call channel, Detecting caller information; Reading and displaying the avatar image data mapped to the detected caller information from a memory; Separating the low frequency signal from the received signal processed by the wireless communication unit during a call; Detecting the frequency of the separated low frequency signal and varying the display avatar image data according to data indicated by the detected frequency. The method of claim 13, further comprising: checking whether there is a key input for generating a low frequency signal during a call; Generating a low frequency signal corresponding to the input key signal; And synthesizing the generated low frequency signal with a voice signal to wirelessly transmit it through a communication channel. 15. The method of claim 14, further comprising displaying data indicated by the low frequency signal corresponding to the input key signal.

Images